A few weeks ago I bought 2 new TRV’s as they were on special offer and I understood them to be a lot quieter than my old ones (which they are), all was working fine until yesterday when they both decided to come on even though they weren’t supposed to, they also decided that even though the actual temperature was way above the target temperature they would open anyway. Deleting them and reprogramming then, resetting the hub, new batteries, nothing seems to make them work correctly. The app shows the room way above the target temperature and the valves open 100%. In desperation I have put the old valves back on. Any idea what has suddenly caused both to malfunction at the same time?
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